http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bài giảng bản đồ học và hệ thống thông tin địa lý ( GIS ), GIS ứng dụng
Nội dung giáo trình nêu các vấn đề về bản đồ, hệ thống thông tin địa lý là gì?phương pháp xây dựng GIS và các ứng dụng của GIS
Geographic information systems,Information storage and retrieval systems - geography